Dear list members,
a security issue has been identified (thanks to chbi from https://chbi.eu/) in the media object component and fixed for ILIAS version 5.1, 5.2 and 5.3beta.
We advise strongly to update your ILIAS installation to the latest version. For more detailed explanations don't hesitate to contact us.
Best regards, Michael Jansen
on behalf of the ILIAS e.V. and the Technical Board